twosigma/beaker-notebook — pull request #858 by scottdraves (2014-11-11 19:48:21+00:00)
Title: add py3 plugin, make py2 and py3 work simuntaneously

this is most of Spot/834,
but there is still a hack because the plugins don't have the UI for selecting their conda environment.
So for now, python3 gets what you set in your .bash_profile, and python2 gets your default env,
ie what you get from "source deactivate".